Lack of varroa mites

The Young Beekeeper couldn't find any varroa mites stuck to our Crisco-slathered file folders , either.    It's unlikely we don't have ANY, though.   Paul Kelly, of the Honey Bee Research Centre, Department of Environmental Biology, University of Guelph, who taught a bee-keeping seminar which I took in April, kindly replied to an  e-mail and an article which I sent along from The New York Times RE a beekeepers'-ball held in New York City (<http://dinersjournal.blogs.nytimes.com/2009/06/23/having-a-ball-at-the-beekeepers-ball/?scp=2&sq=honey%20bees%20&st=cse>):   

Hi Emily:

 Thanks for forwarding the article. Bees sure are getting lots of attention these days. Your varroa population is likely low but certainly won't be non existent. Great to hear you are monitoring. You'll see more mites later in the season.

  Best Regards,   Paul